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HOLLEY DOMINATOR ECU TROUBLESHOOTERS?
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DRR Pro
posted
She just quit running.Cranks but no start.Have the holley 550 dash which fires up off the ignition switch but it has no readings,all zero"s.
Every other component works on the car.
I tried to communicate with the ecu but it wont synch just times out.
There is a 30 amp and a 40 amp fuse at the ecu power harness and they are both good.Every other fuse in the car is good.
There are 2 switched 12v red/white wires to the ecu.One is at connector J3 and it does have switched power off the ignition switch.I assume this powers up the canbus and dash.
The second switched 12volt goes into connector J1 and is on pin A10.If i am correct this turns on the ecu off the ignition switch.It also has power off the ignition switch
This all points to a bad ecu.Anyone think of anything else to try before i replace it? 2500 bucks and a month or two to get a 554-144 ecu!!
 
Posts: 1424 | Location: united states | Registered: January 16, 2006Reply With QuoteReport This Post
DRR Elite
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Maybe Greg Kelly can help
 
Posts: 13522 | Location: NJ | Registered: August 20, 2000Reply With QuoteReport This Post
DRR Pro
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quote:
Maybe Greg Kelly can help

think mr greg is the racepak dude...i think i have to accept the facts that sukka is fried
 
Posts: 1424 | Location: united states | Registered: January 16, 2006Reply With QuoteReport This Post
DRR S/Pro
Picture of Big Steve
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Mike, Did you trip over a black cat while walking under a ladder before this season started Holy Moly
 
Posts: 2410 | Location: Moving back to the door side | Registered: April 30, 2010Reply With QuoteReport This Post
DRR Pro
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https://www.facebook.com/group...j_approved&ref=notif
Go to the above and join Devin Vanderhoofs website to post your question.
https://forums.holley.com/foru...php?50-Dominator-EFI
Or go here and post in this Holley Forum.
Both excellent resources.
 
Posts: 2447 | Location: 53056 | Registered: December 30, 2009Reply With QuoteReport This Post
DRR Pro
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Originally posted by jenavet: 2500 bucks and a month or two to get a 554-144 ecu!!


If you’re going to purchase a new Dominator, consider contacting Glenn Payne at Mad Racing Parts. He can offer same pricing as any Holley dealer and has knowledgeable product help if you purchase from him.
https://madracingparts.com/
 
Posts: 2447 | Location: 53056 | Registered: December 30, 2009Reply With QuoteReport This Post
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